IP Library Granted Patent US 7,389,634
Granted Patent B1
US 7,389,634 · App. 11/726,587 · Granted Jun 24, 2008

Link chain

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Quick Facts
Patent No.
US 7,389,634
App. No.
11/726,587
Granted
Jun 24, 2008
Kind
B1
Abstract

A chain comprising at least two links ( 15 ) having a generally oval or rounded shaped side profile, each of the links having a longitudinal axis (x-x) and linked together such that a force ( 16 ) is applied to each of the links when the chain is in tension, the force generally orientated along the longitudinal axis, each of the links having a cross-sectional profile ( 18 ) at the longitudinal axis and the cross-sectional profile having an outer width ( 19 ) generally along the longitudinal axis and an outer thickness ( 20 ) substantial transverse to the longitudinal axis, wherein the outer width is greater than the outer thickness. The cross-sectional profile may further comprise an inner thickness ( 30 ) substantially transverse to the longitudinal axis that is less than the outer thickness ( 29 ). The cross-sectional profile ( 26 ) may be substantially uniform around the link.

Claims (16)

1. A chain comprising:

at least two links having a generally oval or round shaped side profile;

each of said links having a longitudinal axis and linked together such that a force is applied to each of said links when said chain is in tension, said force generally oriented along said longitudinal axis;

each of said links having a cross-sectional profile at said longitudinal axis and said cross-sectional profile having an outer width generally along said longitudinal axis and an outer thickness substantially transverse to said longitudinal axis;

wherein said width is greater than said outer thickness and said cross-sectional profile is substantially uniform around said link.

2. The chain set forth in claim 1 , wherein said thickness is defined by a first edge substantially parallel to said longitudinal axis and a second edge substantially parallel to said longitudinal axis.

3. The chain set forth in claim 1 , wherein said cross-sectional profile further comprises an inner thickness substantially transverse to said longitudinal axis that is less than said outer thickness.

4. The chain set forth in claim 1 , wherein said cross-sectional profile comprises two edges of a generally convex shape and said width is defined by said edges.

5. The chain set forth in claim 1 , wherein said cross-sectional profile comprises two edges of a generally concave shape and said thickness is defined by said edges.

6. A chain comprising:

at least two generally oval or round shaped links;

each of said links having a longitudinal axis and a substantially uniform cross-section around said link;

said cross-section having an outer thickness and a width greater than said outer thickness; and

said links being linked together such that a force is applied to each of said links when said chain is in tension, said force generally oriented along said longitudinal axis.

7. The chain set forth in claim 6 , wherein said thickness is defined by a first edge substantially parallel to said longitudinal axis and a second edge substantially parallel to said longitudinal axis.

8. The chain set forth in claim 6 , wherein said cross-sectional profile further comprises an inner thickness substantially transverse to said longitudinal axis that is less than said outer thickness.

Assignments (6)
SECURITY INTEREST Recorded Apr 8, 2021
From: COLUMBUS MCKINNON CORPORATION; MAGNETEK INC.; DORNER MFG. CORP.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 055861/0757 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (041169/0857) Recorded Apr 7, 2021
From: JPMORGAN CHASE BANK, N.A,, AS ADMINISTRATIVE AGENT
To: COLUMBUS MCKINNON CORPORATION
Reel/Frame 055861/0310 →
SECURITY INTEREST Recorded Feb 3, 2017
From: COLUMBUS MCKINNON CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 041169/0857 →
TERMINATION AND RELEASE OF SECURITY IN PATENT RIGHTS Recorded Feb 3, 2017
From: JPMORGAN CHASE BANK, N.A.
To: COLUMBUS MCKINNON CORPORATION
Reel/Frame 041621/0352 →
SECURITY INTEREST Recorded Feb 10, 2015
From: COLUMBUS MCKINNON CORPORATION
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 034932/0477 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2008
From: VAN NIEKERK, JOHANNES P
To: COLUMBUS MCKINNIN CORPORATION
Reel/Frame 020917/0233 →